49171356 has 72 divisors (see below), whose sum is σ = 138509280. Its totient is φ = 14603904.

The previous prime is 49171351. The next prime is 49171379. The reversal of 49171356 is 65317194.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 49171356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49171351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11761 + ... + 15383.

It is an arithmetic number, because the mean of its divisors is an integer number (1923740).

Almost surely, 2^49171356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49171356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69254640).

49171356 is an abundant number, since it is smaller than the sum of its proper divisors (89337924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49171356 is a wasteful number, since it uses less digits than its factorization.

49171356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675 (or 3670 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 49171356 is about 7012.2290321980. The cubic root of 49171356 is about 366.3566352669.

It can be divided in two parts, 49 and 171356, that added together give a triangular number (171405 = T₅₈₅).

The spelling of 49171356 in words is "forty-nine million, one hundred seventy-one thousand, three hundred fifty-six".